/* ==========================================================================
   Bookly — Design tokens & global styles
   Palette extracted from reference design:
   Dark Teal #0B3D4A, Cream #F7F1E8, Pink #E0507D, White #FFFFFF
   ========================================================================== */

:root {
  --teal-900: #072A33;
  --teal-800: #0B3D4A;
  --teal-700: #0E4B59;
  --teal-600: #135A6B;
  --teal-tint: #E7F0F1;

  --pink-600: #D6446F;
  --pink-500: #E0507D;
  --pink-400: #E97696;
  --pink-100: #FCE4EB;
  --pink-50:  #FDF1F5;

  --cream: #F7F1E8;
  --cream-soft: #FBF7F1;
  --white: #FFFFFF;

  --text-dark: #1F2D33;
  --text-body: #5B6B70;
  --text-muted: #8B9A9E;
  --border-soft: #ECE4D8;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 50px;

  --shadow-card: 0 4px 16px rgba(11, 61, 74, 0.07);
  --shadow-card-hover: 0 10px 28px rgba(11, 61, 74, 0.14);

  --font-display: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--text-dark);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-dark);
  font-weight: 600;
}

a { text-decoration: none; }

.text-pink { color: var(--pink-500) !important; }
.text-teal { color: var(--teal-800) !important; }
.bg-cream { background-color: var(--cream) !important; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn-pink {
  background-color: var(--pink-500);
  border-color: var(--pink-500);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.4rem;
  transition: all 0.2s ease;
}
.btn-pink:hover, .btn-pink:focus {
  background-color: var(--pink-600);
  border-color: var(--pink-600);
  color: #fff;
  transform: translateY(-1px);
}

.btn-pink-outline {
  background-color: #fff;
  border: 1.5px solid var(--pink-500);
  color: var(--pink-500);
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.4rem;
  transition: all 0.2s ease;
}
.btn-pink-outline:hover {
  background-color: var(--pink-50);
  color: var(--pink-600);
  border-color: var(--pink-600);
}

.btn-pill-pink {
  background-color: var(--pink-500);
  border-color: var(--pink-500);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.7rem 1.6rem;
  transition: all 0.2s ease;
}
.btn-pill-pink:hover {
  background-color: var(--pink-600);
  color: #fff;
}

.btn-teal {
  background-color: var(--teal-800);
  border-color: var(--teal-800);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.btn-teal:hover {
  background-color: var(--teal-900);
  color: #fff;
}

.btn-link-pink {
  color: var(--pink-500);
  font-weight: 600;
}
.btn-link-pink:hover { color: var(--pink-600); }

/* ==========================================================================
   Navbar
   ========================================================================== */

.bookly-navbar {
  background-color: var(--teal-800);
  padding: 0.7rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.bookly-navbar .navbar-brand {
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.bookly-navbar .navbar-brand i { color: var(--pink-400); }

.bookly-navbar .nav-link {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  padding: 0.5rem 0.9rem !important;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}
.bookly-navbar .nav-link:hover { color: #fff; }
.bookly-navbar .nav-link.active {
  color: var(--pink-400);
  border-bottom-color: var(--pink-400);
}

.bookly-navbar .nav-icon-btn {
  color: #fff;
  background: rgba(255,255,255,0.12);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.bookly-navbar .nav-icon-btn:hover { background: rgba(255,255,255,0.22); color: #fff; }

.bookly-navbar .navbar-toggler {
  border-color: rgba(255,255,255,0.3);
}
.bookly-navbar .navbar-toggler-icon {
  filter: invert(1);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero-section {
  padding: 3.5rem 0 2.5rem;
}
.hero-title {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--teal-800);
  line-height: 1.15;
}
.hero-desc {
  color: var(--text-body);
  font-size: 1.02rem;
  max-width: 480px;
}
.hero-search .form-control {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border: 1px solid var(--border-soft);
  padding: 0.75rem 1rem;
  background: #fff;
}
.hero-search .form-control:focus { box-shadow: none; border-color: var(--pink-400); }
.hero-search .btn-pink {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.hero-illustration { max-width: 100%; height: auto; }

/* ==========================================================================
   Section headings
   ========================================================================== */

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--teal-800);
  position: relative;
  padding-left: 0.8rem;
  border-left: 4px solid var(--pink-500);
}
.section-heading-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.2rem;
}
.view-all-link {
  color: var(--pink-500);
  font-weight: 600;
  font-size: 0.92rem;
}
.view-all-link:hover { color: var(--pink-600); }

section { padding: 2.2rem 0; }

/* ==========================================================================
   Book Cards
   ========================================================================== */

.book-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-soft);
}
.book-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
}
.book-cover-wrap {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--teal-tint);
  overflow: hidden;
}
.book-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.book-cover-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.8rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}
.favorite-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pink-500);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transition: transform 0.15s ease;
  z-index: 2;
}
.favorite-btn:hover { transform: scale(1.1); }
.favorite-btn.active i { font-weight: 900; }
.favorite-btn i { pointer-events: none; }

.book-card-body {
  padding: 0.9rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.book-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.15rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.book-card-author {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.book-rating {
  color: var(--pink-500);
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: auto;
}
.book-rating i { color: var(--pink-500); }
.book-card-actions { margin-top: 0.6rem; }

/* ==========================================================================
   Category tiles
   ========================================================================== */

.category-tile {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.2rem 0.8rem;
  text-align: center;
  transition: all 0.2s ease;
  height: 100%;
  display: block;
  color: var(--text-dark);
}
.category-tile:hover {
  border-color: var(--pink-400);
  box-shadow: var(--shadow-card);
  color: var(--text-dark);
  transform: translateY(-3px);
}
.category-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--pink-100);
  color: var(--pink-500);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.7rem;
  font-size: 1.2rem;
}
.category-tile .cat-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}
.category-tile .cat-count {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Stats bar
   ========================================================================== */

.stats-bar {
  background: var(--teal-800);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1rem;
  color: #fff;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  justify-content: center;
}
.stat-icon {
  color: var(--pink-400);
  font-size: 1.6rem;
}
.stat-number {
  font-weight: 700;
  font-size: 1.25rem;
  font-family: var(--font-display);
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.75);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.bookly-footer {
  background: var(--teal-800);
  color: rgba(255,255,255,0.85);
  padding: 3rem 0 0;
  margin-top: 3rem;
}
.bookly-footer h6 {
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}
.bookly-footer .footer-brand {
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.bookly-footer .footer-brand i { color: var(--pink-400); }
.bookly-footer p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.bookly-footer ul { list-style: none; padding: 0; margin: 0; }
.bookly-footer ul li { margin-bottom: 0.6rem; }
.bookly-footer ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}
.bookly-footer ul li a:hover { color: var(--pink-400); }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--pink-500);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.5rem;
  transition: background 0.2s ease;
}
.footer-social a:hover { background: var(--pink-600); }
.footer-newsletter .form-control {
  border-radius: var(--radius-sm);
  border: none;
  padding: 0.6rem 0.9rem;
  margin-bottom: 0.6rem;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 2rem;
  padding: 1.2rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal-800);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
  border: none;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--pink-500); }

/* ==========================================================================
   Sidebar filters (Books / Search / Categories pages)
   ========================================================================== */

.filter-sidebar {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 1.2rem;
  border: 1px solid var(--border-soft);
}
.filter-sidebar h6 {
  font-weight: 700;
  margin-bottom: 0.9rem;
  color: var(--text-dark);
}
.category-filter-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.category-filter-list li { margin-bottom: 0.55rem; }
.category-filter-list a {
  color: var(--text-body);
  font-size: 0.92rem;
  display: flex;
  justify-content: space-between;
  transition: color 0.2s ease;
}
.category-filter-list a .count { color: var(--text-muted); font-size: 0.82rem; }
.category-filter-list a:hover, .category-filter-list a.active {
  color: var(--pink-500);
  font-weight: 600;
}
.form-check-input:checked {
  background-color: var(--pink-500);
  border-color: var(--pink-500);
}
.form-check-input:focus { box-shadow: none; }

/* Page header */
.page-header { padding: 2rem 0 0.5rem; }
.page-header h2 { color: var(--teal-800); font-weight: 700; }
.page-header .text-muted { font-size: 0.92rem; }

.breadcrumb-bar { padding: 0.9rem 0; font-size: 0.88rem; }
.breadcrumb-bar a { color: var(--text-muted); }
.breadcrumb-bar a:hover { color: var(--pink-500); }
.breadcrumb-bar .active { color: var(--text-dark); font-weight: 600; }

.search-input-group .form-control {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border-color: var(--border-soft);
}
.search-input-group .input-group-text {
  background: #fff;
  border-color: var(--border-soft);
  border-right: none;
}
.btn-filters {
  border: 1px solid var(--pink-400);
  color: var(--pink-500);
  background: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  padding: 0.5rem 1rem;
}
.btn-filters:hover { background: var(--pink-50); }

/* ==========================================================================
   Pagination
   ========================================================================== */

.pagination .page-link {
  color: var(--text-body);
  border: 1px solid var(--border-soft);
  margin: 0 3px;
  border-radius: var(--radius-sm) !important;
}
.pagination .page-item.active .page-link {
  background-color: var(--pink-500);
  border-color: var(--pink-500);
  color: #fff;
}
.pagination .page-link:hover { background: var(--pink-50); color: var(--pink-600); }

/* ==========================================================================
   Book details page
   ========================================================================== */

.details-cover {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 3/4.3;
  background: var(--teal-tint);
}
.details-cover img { width: 100%; height: 100%; object-fit: cover; }
.details-meta-list { list-style: none; padding: 0; margin: 1.2rem 0; }
.details-meta-list li {
  display: flex;
  gap: 0.6rem;
  padding: 0.45rem 0;
  font-size: 0.92rem;
  border-bottom: 1px dashed var(--border-soft);
}
.details-meta-list li i { color: var(--pink-500); width: 18px; }
.details-meta-list li strong { min-width: 120px; color: var(--text-dark); }
.details-meta-list li span { color: var(--text-body); }

.badge-author {
  background: var(--pink-100);
  color: var(--pink-600);
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.35em 0.8em;
  font-size: 0.78rem;
}
.review-card {
  border-bottom: 1px solid var(--border-soft);
  padding: 1rem 0;
}
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.review-stars { color: var(--pink-500); font-size: 0.85rem; }

/* ==========================================================================
   Category grid & author cards
   ========================================================================== */

.author-card {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transition: all 0.2s ease;
}
.author-card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); }
.author-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.author-card .author-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.1rem; }
.author-card .author-count { font-size: 0.8rem; color: var(--text-muted); }

/* ==========================================================================
   Auth pages
   ========================================================================== */

.auth-wrapper {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.auth-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 2.2rem;
  max-width: 420px;
  width: 100%;
}
.auth-card h3 { color: var(--teal-800); font-weight: 700; }
.auth-card .form-label { font-weight: 600; font-size: 0.9rem; }
.auth-card .form-control {
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  border-color: var(--border-soft);
}
.auth-card .form-control:focus { border-color: var(--pink-400); box-shadow: none; }
.auth-illustration { max-width: 260px; margin: 0 auto 1rem; display: block; }

/* ==========================================================================
   Profile page
   ========================================================================== */

.profile-sidebar {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  padding: 1rem;
}
.profile-sidebar .list-group-item {
  border: none;
  border-radius: var(--radius-sm) !important;
  font-weight: 500;
  color: var(--text-body);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.2rem;
}
.profile-sidebar .list-group-item.active {
  background: var(--pink-50);
  color: var(--pink-600);
  font-weight: 700;
}
.profile-avatar-lg {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--pink-100);
}
.profile-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  padding: 1.6rem;
}

/* ==========================================================================
   Empty / loading states
   ========================================================================== */

.state-box {
  text-align: center;
  padding: 3.5rem 1.5rem;
  color: var(--text-muted);
}
.state-box i { font-size: 2.6rem; color: var(--pink-300, #E97696); margin-bottom: 1rem; display: block; }
.state-box h5 { color: var(--text-dark); margin-bottom: 0.4rem; }
.spinner-pink {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--pink-500);
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.rounded-lg { border-radius: var(--radius-lg) !important; }
.shadow-card { box-shadow: var(--shadow-card); }
.skeleton {
  background: linear-gradient(90deg, #eee 25%, #f5f5f5 37%, #eee 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
}
@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (max-width: 767px) {
  .hero-title { font-size: 1.9rem; }
  .stats-bar .stat-item { justify-content: flex-start; margin-bottom: 0.8rem; }
}